1028597164 has 24 divisors (see below), whose sum is σ = 2086172928. Its totient is φ = 434617680.

The previous prime is 1028597153. The next prime is 1028597173. The reversal of 1028597164 is 4617958201.

It is a self number, because there is not a number n which added to its sum of digits gives 1028597164.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256714 + ... + 260689.

It is an arithmetic number, because the mean of its divisors is an integer number (86923872).

Almost surely, 2^1028597164 is an apocalyptic number.

1028597164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1028597164 is an abundant number, since it is smaller than the sum of its proper divisors (1057575764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1028597164 is a wasteful number, since it uses less digits than its factorization.

1028597164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517485 (or 517483 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 1028597164 is about 32071.7502484663. The cubic root of 1028597164 is about 1009.4429382446.

The spelling of 1028597164 in words is "one billion, twenty-eight million, five hundred ninety-seven thousand, one hundred sixty-four".